Understanding Protein Folding

Practice Questions

High School Biology › Understanding Protein Folding

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1

Ribosomes are involved in what level of protein folding?

2

In protein folding, secondary structures refer to which of the following?

3

Bob, a biologist who was researching a new eukaryotic unicellular species, wanted to study a particular protein Y. After obtaining and purifying the sample, Bob discovered that this protein had 3 subunits: A, B, and C. Through substantive scientific analysis, Bob discovered that protein Y operated in a membrane; however, he could not deduce which particular membrane. Nonetheless, Bob found that only subunit B was traversed through the interior of the membrane. With Bob’s findings, please answer the following questions.

What is the highest order of protein structure exhibited by Bob’s protein?

4

Which of the following types of amino acids would most likely be found in the center of eukaryotic globular proteins?

5

Val-Gly-Ser-Leu is an example of which level of protein structure?

6

What must be true for a protein to have quaternary structure?

7

In which level of protein structure will you find alpha-helices and beta-sheets?

8

Hemoglobin is a oxygen-carrying protein present in red blood cells. Its structure is that of four subunits—two alpha units and two beta units. What level of structure is implicated in this description?

9

You closely analyze the disulfide bridges in a protein molecule. In which phase of protein synthesis/structure would you first find these disulfide bridges?

10

Which of the following correctly describes the tertiary stucture of a protein?

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